Alternator fan



FIG. 1 is a side perspective view of an alternator fan showing my new design;

FIG. 2 is a front plan view thereof;

FIG. 3 is a side elevational view thereof, on a reduced scale;

FIG. 4 is is a side elevational view on a reduced scale taken from the side opposite that of FIG.3; and,

FIG. 5 is a rear plan view thereof, on a reduced scale. 

The ornamental design for an alternator fan, as shown. 